The elimination of peak-to-average power ratio concerns in ofdm via carrier interferometry spreading codes: a multiple constellation analysis

Wiegandt, D.A.; Nassar, C.R.; Wu, Zhiqiang

doi:10.1109/ssst.2004.1295673

Cited by 19 publications

(3 citation statements)

References 12 publications

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“…Compared with OFDM, the CI/OFDM has a low PAPR characteristic and inherent frequency selective combining, which makes it a very attractive signaling scheme in frequency selective fading channels Wiegandt & Nassar, 2003;Wiegandt et al, 2004 ).…”

Section: Introductionmentioning

confidence: 99%

CI/OFDM Underwater Acoustic Communication System

Xu¹,

Ru²

2012

Underwater Acoustics

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Section: Introductionmentioning

confidence: 99%

CI/OFDM Underwater Acoustic Communication System

Xu¹,

Ru²

2012

Underwater Acoustics

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“…Recently, a new kind of technique called CI-COFDM has been widely studied [1][2][3][4]9]. In the CI-COFDM technique, each coded information symbol is sent simultaneously over all carriers and the each carrier for the symbol is assigned a corresponding orthogonal CI spreading code.…”

Section: Iintroductionmentioning

confidence: 99%

Performance Analysis of MIMO SFBC CI-COFDM System against the Nonlinear Distortion and Narrowband Interference

Reddy

Naidu

2012

IJESS

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Carrier Interferometry Coded Orthogonal Frequency Division Multiplexing (CI-COFDM) system has been widely studied in multi-carrier communication system. The CI-COFDM system spreads each coded information symbol across all N sub-carriers using orthogonal CI spreading codes. The CI-COFDM system shows the advantages of Peak to Average Power Ratio (PAPR) reduction, frequency diversity and coding gain without any loss of communication throughput. On the other side, a great attention has been devoted to Multi Input Multi Output (MIMO) antenna systems and space-time-frequency processing. In this paper, we focus on two Transmit (Tx)/one Receive (Rx) antennas configuration and evaluate the performance of MIMO OFDM, MIMO CIOFDM and MIMO CI-COFDM systems. Space Frequency Block Coding (SFBC) is applied to MIMO OFDM, MIMO CI-ODFM and MIMO CI-COFDM systems. For CI-COFDM realization, digital implemented CI-COFDM is used in which information conventional is encoded, CI code spreading operation and carrier allocation are processed by IFFT type operation. From simulation results, it is shown that MIMO SFBC CI-COFDM reduces PAPR significantly as compared with that of MIMO SFBC CI-OFDM and MIMO SFBC OFDM systems. In Narrow Band Interference (NBI) channel MIMO SFBC CI-COFDM systems achieve considerable Bit Error Rate (BER) improvement compared with MMO SFBC CI-OFDM and MIMO SFBC OFDM system.

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“…Although CI/OFDM system was shown to possess good peak-to-average ratio (PAPR) [2], [3] and significantly outperform the OFDM systems in terms of BER in multipath fading channel [4], [5], its implementation is complicated, and only concept transmitter and receiver models have been given in the literature. In this paper, the inverse fast Fourier transform (IFFT) is used to perform spreading in transmitter, and fast Fourier transform (FFT) is used to implement de-spreading at the receiver.…”

Section: Introductionmentioning

confidence: 99%

Implementation of Carrier Interferometry OFDM by Using Pulse Shaping Technique in Frequency Domain

Sun

2007

2007 International Workshop on Anti-Counterfeiting, Security and Identification (ASID)

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This paper presents a novel design of carrier interferometry (CI) spreading codes by Using inverse fast Fourier transform (IFFT) instead of linear transform matrix . Pulse shaping method in frequency domain is used to generate different carrier interferometry orthogonal frequency division multiplexing (CI/OFDM) signals. Peak-to-average power ratio (PAPR) performance has been compared among OFDM, original CI/OFDM and our proposal. Simulation results show that our proposal could simplify the system implementation and improve the signal processing efficiency without PAPR performance degradation.

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The elimination of peak-to-average power ratio concerns in ofdm via carrier interferometry spreading codes: a multiple constellation analysis

Cited by 19 publications

References 12 publications

CI/OFDM Underwater Acoustic Communication System

CI/OFDM Underwater Acoustic Communication System

Performance Analysis of MIMO SFBC CI-COFDM System against the Nonlinear Distortion and Narrowband Interference

Implementation of Carrier Interferometry OFDM by Using Pulse Shaping Technique in Frequency Domain

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